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p UNITED STATES PATENT OFFICE.

GEORGE S. BLACK, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO ELIAS G. ATKINS, OF SAME PLACE.A

sAwYERs GAGE.

SPECIFICATION forming part of Letters Patent No. 292,465, dated January 29, 1884,

Application met oitber 2, 1F83. (No model.)

To all whom z5-may concern.-

Beit known that I, GEORGE S. BLACK, a

' citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improved Sawyers Gage, of which the following is a specification.

The object of my invention is to provide an j improved gage for the use of sawyers in dress'- ing saw-teeth, by which the thickness of the saw-plate, the width of the cutting-edges of the teeth, and the amount of set may be ascerdiffers from an ordinarysquare, in that it is particularly adapted for use in determining whether the cutting-edge of the sawtooth forms a right angle with the sides of the saw, by having the inner corner out away,`forming a notch, as at c, so as to permit the edge of a to lie against the side of the saw-plate without striking the outer corner of the set or swaged tooth.

For the purpose of gaging the distance which i the set saw-tooth projects beyond the plane of the saw-plate, I form in the edge of a a series of depressed steps, d d, cut away to different depths below the general line of said edge.

' For the purpose of measuring the entire vwidth of the cutting-edge of the tooth, the outer edge of a is marked with graduations e,

showing inches and parts of an inch.

For the purpose of gaging the thickness of the saw-plate, the inner edge of a is provided with a series of notches, f. Said notches are of diii'erent width, corresponding to standard thicknesses of saw-plate, and each is marked according to a recognized standard.

I claim as my inventionf y l. A right-angle gage having the notchc,

`for the purpose specified.

2. A right-angle gage having a series of depressed steps, d, substantially as and for the purpose specified.

3. A sawyers gage, consisting of a rightangle gage having notch c, depressed steps d, graduations e, and notches f, al1 combined substantially as specified.

GEORGE S. BLACK. rWitnesses:

H. P. HooD, E. O., ABBOTT. 

